Hi ScoobaDoo, great game, worth the effort.
Regarding the sub and ball lock: See my post #739 and the few that follow in the Bally Atlantis Owner's Club thread. Some good info and pics there:
https://pinside.com/pinball/forum/topic/bally-atlantis-ownerss-club-fans-welcome/page/15
Your door is missing the coin and return mechs, front bezel and lock, other wise the wiring looks the same as mine, with the same 15 lug white block connector going into the cabinet. Find and install those door parts from similar era Bally/Williams games and you'll be closer to operational.
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